Simultaneous Nadir Overpasses (SNOs) between FY3D and LANDSAT-8
TLE Epoch: 2022 7 28.  Predictions up to the next  14.0 days:

     Date     Time(FY3D) FY3D Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 07/29/2022   23:38:09   ( -72.43,   4.07) 07/29/2022   23:39:20  ( -72.33,   5.14)   37.73                71
 07/30/2022   00:28:48   (  72.00, 172.22) 07/30/2022   00:28:51  (  72.03, 172.25)    2.78                 3
 07/30/2022   01:19:30   ( -71.91, -20.28) 07/30/2022   01:18:21  ( -71.91, -20.33)    1.71                69
 08/01/2022   15:05:12   (  72.37, -47.55) 08/01/2022   15:06:23  (  72.27, -46.73)   30.10                71
 08/01/2022   15:55:49   ( -72.01, 120.47) 08/01/2022   15:55:56  ( -71.99, 120.42)    2.71                 7
 08/01/2022   16:46:35   (  71.94, -72.10) 08/01/2022   16:45:22  (  71.95, -72.01)    3.27                73
 08/04/2022   06:32:16   ( -72.48, -99.50) 08/04/2022   06:33:26  ( -72.39, -98.27)   42.45                70
 08/04/2022   07:22:54   (  72.01,  68.73) 08/04/2022   07:22:58  (  72.03,  68.72)    1.69                 4
 08/04/2022   08:13:36   ( -71.90,-123.75) 08/04/2022   08:12:28  ( -71.92,-123.84)    3.37                68
 08/06/2022   21:59:19   (  72.39,-151.06) 08/06/2022   22:00:30  (  72.31,-150.18)   31.02                71
 08/06/2022   22:49:56   ( -72.02,  16.98) 08/06/2022   22:50:03  ( -72.04,  16.97)    2.16                 7
 08/06/2022   23:40:41   (  71.91,-175.51) 08/06/2022   23:39:30  (  71.94,-175.56)    3.27                71
 08/09/2022   13:26:23   ( -72.49, 157.00) 08/09/2022   13:27:33  ( -72.42, 158.25)   42.98                70
 08/09/2022   14:17:01   (  72.04, -34.80) 08/09/2022   14:17:05  (  72.05, -34.77)    1.62                 4
 08/09/2022   15:07:44   ( -71.97, 132.65) 08/09/2022   15:06:35  ( -71.94, 132.68)    3.00                69